Electrical power (P) is measured in watts using the formula P = V · I where V is the voltage in volts and I is the current in amperes.

If there are 60 volts running to a light bulb of 78 watts, how much current is flowing through the light bulb?

A- 1.3 amperes
B- 138 amperes
C- 4,680 amperes
D-18 amperes

Question

Electrical power (P) is measured in watts using the formula P = V · I where V is the voltage in volts and I is the current in amperes.

If there are 60 volts running to a light bulb of 78 watts, how much current is flowing through the light bulb?

   A- 1.3 amperes
   B- 138 amperes
   C- 4,680 amperes
   D-18 amperes

pottersheep · Answer

so v = 60
p  = 78

we have to find I

pottersheep · Answer

P = V*I
so I = P/V

pottersheep · Answer

I = 78/60.
I don't have a calculator with me but I guess that's 1.3 amperes, so A!

anonymous · Answer

plzhelp me